6NWA

The structure of the photosystem I IsiA super-complex

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074454	3000850	SCOP2B (2022-06-29)
DA [auth H]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074454	3000850	SCOP2B (2022-06-29)
Q [auth a]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074454	3000850	SCOP2B (2022-06-29)
IA [auth V]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074450	3000829	SCOP2B (2022-06-29)
J [auth M]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074450	3000829	SCOP2B (2022-06-29)
W [auth m]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074450	3000829	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074462	3000850	SCOP2B (2022-06-29)
EA [auth G]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074462	3000850	SCOP2B (2022-06-29)
R [auth b]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074462	3000850	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Photosystem I subunit PsaD	8074480	3000951	SCOP2B (2022-06-29)
FA [auth O]	SCOP2B Superfamily	Photosystem I subunit PsaD	8074480	3000951	SCOP2B (2022-06-29)
S [auth d]	SCOP2B Superfamily	Photosystem I subunit PsaD	8074480	3000951	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2B (2022-06-29)
PA [auth e]	SCOP2B Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2B (2022-06-29)
QA [auth P]	SCOP2B Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074438	3000813	SCOP2B (2022-06-29)
RA [auth f]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074438	3000813	SCOP2B (2022-06-29)
SA [auth Q]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074438	3000813	SCOP2B (2022-06-29)
G [auth I]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8074504	3000819	SCOP2B (2022-06-29)
GA [auth R]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8074504	3000819	SCOP2B (2022-06-29)
T [auth i]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8074504	3000819	SCOP2B (2022-06-29)
H [auth J]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074512	3000824	SCOP2B (2022-06-29)
TA [auth j]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074512	3000824	SCOP2B (2022-06-29)
UA [auth S]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074512	3000824	SCOP2B (2022-06-29)
HA [auth U]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087170	3000870	SCOP2B (2022-06-29)
I [auth L]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087170	3000870	SCOP2B (2022-06-29)
V [auth l]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087170	3000870	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PsaA_PsaB_C	e6nwaA2	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
A	PsaA_PsaB_N	e6nwaA1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
DA [auth H]	PsaA_PsaB_C	e6nwaH2	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
DA [auth H]	PsaA_PsaB_N	e6nwaH1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
Q [auth a]	PsaA_PsaB_C	e6nwaa1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
Q [auth a]	PsaA_PsaB_N	e6nwaa2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
IA [auth V]	PsaM	e6nwaV1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
J [auth M]	PsaM	e6nwaM1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
W [auth m]	PsaM	e6nwam1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
AA [auth q]	PSII_1st	e6nwaq1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
BA [auth r]	PSII_1st	e6nwar1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
CA [auth h]	PSII_1st	e6nwah1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
JA [auth t]	PSII_1st	e6nwat1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
K [auth W]	PSII_1st	e6nwaW1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
KA [auth u]	PSII_1st	e6nwau1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
L [auth X]	PSII_1st	e6nwaX1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
LA [auth s]	PSII_1st	e6nwas1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
M [auth Y]	PSII_1st	e6nwaY1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
MA [auth w]	PSII_1st	e6nwaw1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
N [auth Z]	PSII_1st	e6nwaZ1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
NA [auth x]	PSII_1st	e6nwax1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
O [auth g]	PSII_1st	e6nwag1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
OA [auth v]	PSII_1st	e6nwav1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
P [auth y]	PSII_1st	e6nway1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
X [auth n]	PSII_1st	e6nwan1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
Y [auth o]	PSII_1st	e6nwao1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
Z [auth p]	PSII_1st	e6nwap1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PSII_1st	ECOD (1.6)
U [auth k]	PSI_PSAK	e6nwak1	A: alpha bundles	X: Photosystem I reaction center subunit X, PsaK (From Topology)	H: Photosystem I reaction center subunit X, PsaK (From Topology)	T: Photosystem I reaction center subunit X, PsaK	F: PSI_PSAK	ECOD (1.6)
XA [auth K]	PSI_PSAK	e6nwaK1	A: alpha bundles	X: Photosystem I reaction center subunit X, PsaK (From Topology)	H: Photosystem I reaction center subunit X, PsaK (From Topology)	T: Photosystem I reaction center subunit X, PsaK	F: PSI_PSAK	ECOD (1.6)
YA [auth T]	PSI_PSAK	e6nwaT1	A: alpha bundles	X: Photosystem I reaction center subunit X, PsaK (From Topology)	H: Photosystem I reaction center subunit X, PsaK (From Topology)	T: Photosystem I reaction center subunit X, PsaK	F: PSI_PSAK	ECOD (1.6)
B	PsaA_PsaB_C	e6nwaB1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
B	PsaA_PsaB_N	e6nwaB2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
EA [auth G]	PsaA_PsaB_C	e6nwaG1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
EA [auth G]	PsaA_PsaB_N	e6nwaG2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
R [auth b]	PsaA_PsaB_C	e6nwab1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
R [auth b]	PsaA_PsaB_N	e6nwab2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
C	Fer4_21_1	e6nwaC1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_21_1	ECOD (1.6)
VA [auth c]	Fer4_21_1	e6nwac1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_21_1	ECOD (1.6)
WA [auth N]	Fer4_21_1	e6nwaN1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_21_1	ECOD (1.6)
D	PsaD	e6nwaD1	A: a+b two layers	X: Photosystem I subunit PsaD (From Topology)	H: Photosystem I subunit PsaD (From Topology)	T: Photosystem I subunit PsaD	F: PsaD	ECOD (1.6)
FA [auth O]	PsaD	e6nwaO1	A: a+b two layers	X: Photosystem I subunit PsaD (From Topology)	H: Photosystem I subunit PsaD (From Topology)	T: Photosystem I subunit PsaD	F: PsaD	ECOD (1.6)
S [auth d]	PsaD	e6nwad1	A: a+b two layers	X: Photosystem I subunit PsaD (From Topology)	H: Photosystem I subunit PsaD (From Topology)	T: Photosystem I subunit PsaD	F: PsaD	ECOD (1.6)
E	PSI_PsaE	e6nwaE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
PA [auth e]	PSI_PsaE	e6nwae1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
QA [auth P]	PSI_PsaE	e6nwaP1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
F	PSI_PsaF	e6nwaF1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
RA [auth f]	PSI_PsaF	e6nwaf1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
SA [auth Q]	PSI_PsaF	e6nwaQ1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
G [auth I]	PSI_8	e6nwaI1	A: extended segments	X: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	H: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	T: Subunit VIII of photosystem I reaction centre, PsaI	F: PSI_8	ECOD (1.6)
GA [auth R]	PSI_8	e6nwaR1	A: extended segments	X: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	H: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	T: Subunit VIII of photosystem I reaction centre, PsaI	F: PSI_8	ECOD (1.6)
T [auth i]	PSI_8	e6nwai1	A: extended segments	X: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	H: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	T: Subunit VIII of photosystem I reaction centre, PsaI	F: PSI_8	ECOD (1.6)
H [auth J]	PSI_PsaJ	e6nwaJ1	A: extended segments	X: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	H: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	T: Subunit IX of photosystem I reaction centre, PsaJ	F: PSI_PsaJ	ECOD (1.6)
TA [auth j]	PSI_PsaJ	e6nwaj1	A: extended segments	X: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	H: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	T: Subunit IX of photosystem I reaction centre, PsaJ	F: PSI_PsaJ	ECOD (1.6)
UA [auth S]	PSI_PsaJ	e6nwaS1	A: extended segments	X: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	H: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	T: Subunit IX of photosystem I reaction centre, PsaJ	F: PSI_PsaJ	ECOD (1.6)
HA [auth U]	PsaL	e6nwaU1	A: alpha bundles	X: Photosystem I reaction center subunit XI, PsaL (From Topology)	H: Photosystem I reaction center subunit XI, PsaL (From Topology)	T: Photosystem I reaction center subunit XI, PsaL	F: PsaL	ECOD (1.6)
I [auth L]	PsaL	e6nwaL1	A: alpha bundles	X: Photosystem I reaction center subunit XI, PsaL (From Topology)	H: Photosystem I reaction center subunit XI, PsaL (From Topology)	T: Photosystem I reaction center subunit XI, PsaL	F: PsaL	ECOD (1.6)
V [auth l]	PsaL	e6nwal1	A: alpha bundles	X: Photosystem I reaction center subunit XI, PsaL (From Topology)	H: Photosystem I reaction center subunit XI, PsaL (From Topology)	T: Photosystem I reaction center subunit XI, PsaL	F: PsaL	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, DA [auth H], Q [auth a]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
IA [auth V], J [auth M], W [auth m]	PF07465	Photosystem I protein M (PsaM) (PsaM)	Photosystem I protein M (PsaM)	-	Family
AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], KA [auth u], L [auth X], LA [auth s], M [auth Y], MA [auth w], N [auth Z], NA [auth x], O [auth g], OA [auth v], P [auth y], X [auth n], Y [auth o], Z [auth p]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
U [auth k], XA [auth K], YA [auth T]	PF01241	Photosystem I psaG / psaK (PSI_PSAK)	Photosystem I psaG / psaK	-	Family
U [auth k], XA [auth K], YA [auth T]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
B, EA [auth G], R [auth b]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
B, EA [auth G], R [auth b]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
C, VA [auth c], WA [auth N]	PF12838	4Fe-4S dicluster domain (Fer4_7)	4Fe-4S dicluster domain	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contai ...	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contains two 4Fe4S clusters.	Domain
C, VA [auth c], WA [auth N]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
D, FA [auth O], S [auth d]	PF02531	PsaD (PsaD)	PsaD	-	Family
D, FA [auth O], S [auth d]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
E, PA [auth e], QA [auth P]	PF02427	Photosystem I reaction centre subunit IV / PsaE (PSI_PsaE)	Photosystem I reaction centre subunit IV / PsaE	PsaE is a 69 amino acid polypeptide from photosystem I present on the stromal side of the thylakoid membrane [1]. The structure is comprised of a well-defined five-stranded beta-sheet similar to SH3 domains [1].	Domain
E, PA [auth e], QA [auth P]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
F, RA [auth f], SA [auth Q]	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family
F, RA [auth f], SA [auth Q]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
G [auth I], GA [auth R], T [auth i]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
G [auth I], GA [auth R], T [auth i]	PF00796	Photosystem I reaction centre subunit VIII (PSI_8)	Photosystem I reaction centre subunit VIII	-	Family
H [auth J], TA [auth j], UA [auth S]	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
H [auth J], TA [auth j], UA [auth S]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
HA [auth U], I [auth L], V [auth l]	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
HA [auth U], I [auth L], V [auth l]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, DA [auth H], Q [auth a]	Photosystem I P700 chlorophyll a apoprotein A1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity chlorophyll binding tetrapyrrole binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding electron transfer activity	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
IA [auth V], J [auth M], W [auth m]	Photosystem I reaction center subunit XII	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], KA [auth u], L [auth X], LA [auth s], M [auth Y], MA [auth w], N [auth Z], NA [auth x], O [auth g], OA [auth v], P [auth y], X [auth n], Y [auth o], Z [auth p]	Iron stress-induced chlorophyll-binding protein	chlorophyll binding binding tetrapyrrole binding	cellular response to stimulus response to nutrient levels inorganic ion homeostasis response to stimulus homeostatic process cellular response to starvation cellular response to iron ion starvation cellular response to nutrient levels intracellular iron ion homeostasis cellular homeostasis chemical homeostasis cellular response to stress intracellular monoatomic cation homeostasis response to stress monoatomic ion homeostasis cellular response to stimulus response to nutrient levels inorganic ion homeostasis response to stimulus homeostatic process cellular response to starvation cellular response to iron ion starvation cellular response to nutrient levels intracellular iron ion homeostasis cellular homeostasis chemical homeostasis cellular response to stress intracellular monoatomic cation homeostasis response to stress monoatomic ion homeostasis intracellular chemical homeostasis cellular process response to starvation monoatomic cation homeostasis intracellular monoatomic ion homeostasis photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain metabolic process generation of precursor metabolites and energy	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
U [auth k], XA [auth K], YA [auth T]	Photosystem I reaction center subunit PsaK 1	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
B, EA [auth G], R [auth b]	Photosystem I P700 chlorophyll a apoprotein A2	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity chlorophyll binding tetrapyrrole binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding electron transfer activity	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
C, VA [auth c], WA [auth N]	Photosystem I iron-sulfur center	oxidoreductase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy photosynthetic electron transport in photosystem I	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
D, FA [auth O], S [auth d]	Photosystem I reaction center subunit II	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid cell periphery plasma membrane
E, PA [auth e], QA [auth P]	Photosystem I reaction center subunit IV	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
F, RA [auth f], SA [auth Q]	Photosystem I reaction center subunit III	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid cell periphery plasma membrane
G [auth I], GA [auth R], T [auth i]	Photosystem I reaction center subunit VIII	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
H [auth J], TA [auth j], UA [auth S]	Photosystem I reaction center subunit IX	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
HA [auth U], I [auth L], V [auth l]	Photosystem I reaction center subunit XI	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, DA [auth H], Q [auth a]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A, DA [auth H], Q [auth a]	IPR001280	Photosystem I PsaA/PsaB	Family
A, DA [auth H], Q [auth a]	IPR006243	Photosystem I PsaA	Family
A, DA [auth H], Q [auth a]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
IA [auth V], J [auth M], W [auth m]	IPR010010	Photosystem I PsaM, reaction centre	Family
IA [auth V], J [auth M], W [auth m]	IPR037279	Photosystem I PsaM, reaction centre superfamily	Homologous Superfamily
AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], KA [auth u], L [auth X], LA [auth s], M [auth Y], MA [auth w], N [auth Z], NA [auth x], O [auth g], OA [auth v], P [auth y], X [auth n], Y [auth o], Z [auth p]	IPR036001	Photosystem antenna protein-like superfamily	Homologous Superfamily
AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], AA [auth q], BA [auth r], CA [auth h], JA [auth t], K [auth W], KA [auth u], L [auth X], LA [auth s], M [auth Y], MA [auth w], N [auth Z], NA [auth x], O [auth g], OA [auth v], P [auth y], X [auth n], Y [auth o], Z [auth p]	IPR000932	Photosystem antenna protein-like	Family
U [auth k], XA [auth K], YA [auth T]	IPR037101	Photosystem I reaction centre subunit PsaK	Homologous Superfamily
U [auth k], XA [auth K], YA [auth T]	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
U [auth k], XA [auth K], YA [auth T]	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
U [auth k], XA [auth K], YA [auth T]	IPR017492	Photosystem I reaction center subunit PsaK	Family
B, EA [auth G], R [auth b]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B, EA [auth G], R [auth b]	IPR001280	Photosystem I PsaA/PsaB	Family
B, EA [auth G], R [auth b]	IPR006244	Photosystem I PsaB	Family
B, EA [auth G], R [auth b]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
C, VA [auth c], WA [auth N]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
C, VA [auth c], WA [auth N]	IPR050157	Photosystem I iron-sulfur center	Family
C, VA [auth c], WA [auth N]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
C, VA [auth c], WA [auth N]	IPR017491	Photosystem I protein PsaC	Family
D, FA [auth O], S [auth d]	IPR003685	Photosystem I PsaD	Family
D, FA [auth O], S [auth d]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
E, PA [auth e], QA [auth P]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
E, PA [auth e], QA [auth P]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
F, RA [auth f], SA [auth Q]	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
F, RA [auth f], SA [auth Q]	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
G [auth I], GA [auth R], T [auth i]	IPR036357	Photosystem I reaction centre subunit VIII superfamily	Homologous Superfamily
G [auth I], GA [auth R], T [auth i]	IPR001302	Photosystem I reaction centre subunit VIII	Family
H [auth J], TA [auth j], UA [auth S]	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
H [auth J], TA [auth j], UA [auth S]	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
HA [auth U], I [auth L], V [auth l]	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
HA [auth U], I [auth L], V [auth l]	IPR022980	Photosystem I, reaction centre subunit XI	Family
HA [auth U], I [auth L], V [auth l]	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, AA [auth q], B, BA [auth r], C A, AA [auth q], B, BA [auth r], C, CA [auth h], DA [auth H], E, EA [auth G], F, G [auth I], GA [auth R], H [auth J], HA [auth U], I [auth L], IA [auth V], J [auth M], JA [auth t], K [auth W], KA [auth u], L [auth X], LA [auth s], M [auth Y], MA [auth w], N [auth Z], NA [auth x], O [auth g], OA [auth v], P [auth y], PA [auth e], Q [auth a], QA [auth P], R [auth b], RA [auth f], SA [auth Q], T [auth i], TA [auth j], U [auth k], UA [auth S], V [auth l], VA [auth c], W [auth m], WA [auth N], X [auth n], XA [auth K], Y [auth o], YA [auth T], Z [auth p]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, AA [auth q], B, BA [auth r], C A, AA [auth q], B, BA [auth r], C, CA [auth h], DA [auth H], E, EA [auth G], F, G [auth I], GA [auth R], H [auth J], HA [auth U], I [auth L], IA [auth V], J [auth M], JA [auth t], K [auth W], KA [auth u], L [auth X], LA [auth s], M [auth Y], MA [auth w], N [auth Z], NA [auth x], O [auth g], OA [auth v], P [auth y], PA [auth e], Q [auth a], QA [auth P], R [auth b], RA [auth f], SA [auth Q], T [auth i], TA [auth j], U [auth k], UA [auth S], V [auth l], VA [auth c], W [auth m], WA [auth N], X [auth n], XA [auth K], Y [auth o], YA [auth T], Z [auth p]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Photosystem+Light-Harvesting Complex Supercomplex	Photosystem I IsiA supercomplex